TMEM173 (STING) is an endoplasmic reticulum (ER) receptor that facilitates interferon (IFN) induction by binding to DDX58 (RIG-I) and to subunits of TRAP complex that facilitates translocation of proteins into the ER following translation.

TMEM173 is an adaptor protein that links virus-sensing receptors to IRF3 activation. RNF5 negatively regulates this virus-triggered signaling by targeting TMEM173 for ubiquitination and degradation at the mitochondria.

In herpes simplex virus 1 (HSV-1) infected cells, the stability and function of IFI16 and TMEM173 are dependent on cell derivation and the functional integrity of HSV-1 proteins ICP0 and US3 protein kinase.

The end result of the interplay between TMEM173 (STING), IFI16, and herpes simplex virus 1 (HSV-1) is determined by the genotype of the infected cells and the functional integrity of HSV-1 proteins infected cell protein 0 (ICP0) and US3 protein kinase.

[Mus musculus] Cyclic dinucleotides initiate the production of Tmem173(STING)-dependent proinflammatory genes and a negative-feedback to prevent sustained production that may otherwise lead to inflammation.

[Mus musculus] DNA vaccine-induced, Irf7-dependent signalling, as part of the Tmem173 (Sting) pathway, is critical for generation of both innate cytokine signalling and antigen-specific B and T cell responses.

InnateDB is being developed jointly by the Brinkman Laboratory (Simon Fraser University, British Columbia, Canada),
the Hancock Laboratory (University of British Columbia, Vancouver, British Columbia)
and the Lynn EMBL Australia Group (South Australian Health & Medical Research Institute and Flinders University, Adelaide, Australia).

Funding is currently provided by Allergen and EMBL Australia. Previous funding has been provided by Genome Canada, the Foundation for the National Institutes of Health
through the Grand Challenges in Global Health initiative and by Teagasc. InnateDB curated interactions are licensed under the Design Science License. All other data is licensed under the terms of the originating database.
Contact: innatedb-mail@sfu.ca